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Journal of Earth and Marine Technology (JEMT)
Published by Institut Teknologi Adhi Tama Surabaya
ISSN : -     EISSN : 27238105     DOI : https://doi.org/10.31284/j.jemt
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Physics Transportation
Earth Science and planetary, Geology, Geochemistry, Geophysics, Geodesy, Geomatics, Geotech, Rock mechanics, Mining engineering, Natural Disaster, Land and ocean development, Natural resources, Environmental science, Social impact of mining and marine activity, Science and technology in mapping and surveying, Optical remote sensing and radar remote sensing, Cadastre and 3D modeling, Geodynamics theory and application, Geospatial, Land Surveying, Geomarine, Photogrammetry, Marine engineering
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Ilmu Bumi dan Planet (Lain-Lain)
Articles 21 Documents
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Search results for , issue "Vol 4, No 2 (2024)" : 21 Documents clear
Overview Methods Calculation Resource and Reserve Estimation Wahid, Muhammad Abdul; Winarno, Eddy
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5344

Abstract

The calculation of resources and reserves is carried out base on several factors, namely: Sediment Geology, Exploration Method, Type of data owned, purpose of calculation, and desired level of confidence. There are several methods for calculating resources and reserves, including: Area of Influence, Cross Section, Polygon, Triangulation, Isoline, as well as several Interpolation Methods such as : Ordinary Kriging (OK), Neighborhood Nearest Point (NNP) and Inverse Distance Weighting (IDW). Therefore, it is necessary to carry out an analysis related to the method of calculating the right resources and reserves in order to produce more accurate estimates of resources and reserves. The author analyses by making comparisons between several previous studies by looking at the advantages and disadvantages of these methods based on existing literature studies.
Potential Waste Reduction Through 3R (Reduce, Reuse, and Recycle) in Surabaya City: Focus on East and South Surabaya Nampira, Anisa Apriliani; Pramestyawati, Talent Nia; Afrianisa, Ro’du Dhuha
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5961

Abstract

Surabaya, the second largest city in Indonesia, faces significant environmental challenges, particularly waste management. To address this issue, the Surabaya City Government, through the Surabaya City Environmental Service (DLH), has introduced an innovative solution: the waste bank program. This practical work aims to evaluate the potential for waste reduction in East Surabaya and South Surabaya using the 3R (Reduce, Reuse, and Recycle) system facilitated by the waste bank program. The waste bank involves the sorting and collecting of recyclable and reusable waste with economic value. Initially, waste sorting was done at the waste bank, but there has been progress. Now, many customers are sorting their waste by type at home. However, some waste bank administrators still need to sort waste on-site due to some customers' inability to do so. The waste bank program also maintains organized weighing and management procedures. All transactions are meticulously recorded in both cash books and passbooks. The results of this program show that waste reduction in active waste banks in East Surabaya and South Surabaya is 0.088%, while the overall waste reduction managed by the Environmental Service (DLH) is 0.571%. To enhance the effectiveness of the waste bank program, it is essential to conduct awareness campaigns to educate the public on the importance of waste management. Additionally, offering rewards to customers could further motivate them to actively participate in the waste bank program.
Provenance and Petrographic Analysis of Paleogene Sandstones in the Bukit Tigapuluh Area, Jambi Subbasin, Indonesia Daryono, Sapto Kis; Idarwati, Idarwati
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5627

Abstract

The study investigates the provenance of Paleogene sandstone deposits from the Lemat Formation in the Lubuk Lawas and Lubuk Bernai sections of the Bukit Tigapuluh area, Jambi Subbasin, South Sumatra Basin, Indonesia. The research aims to elucidate the formation history and stratigraphic evolution of these sedimentary rocks through detailed petrographic analysis. Twenty-two rock samples were analyzed to classify the sandstones and determine their source rock types and tectonic settings. The results indicate that the sandstones are primarily classified as Lithic Arkose, Arkosic Subarkose, Feldspathic Litharenite, Silty Claystone, Sublitharenite, and Subarkosic Wacke. The provenance analysis suggests that these sandstones originated from a tectonic setting of a recycled orogenic zone, comprising quartzose recycled, transitional recycled, and mixed sources, indicating a combination of primary and recycled orogenic materials. Paleocurrent analysis from sedimentary structures in the Lubuk Bernai area suggests deposition directions from the southwest and southeast. This study provides significant insights into the paleogeography and tectonic evolution of the Lemat Formation within the Jambi Subbasin. Further research should focus on integrating geochemical data to refine the understanding of sedimentary provenance and tectonic implications.
Geological History Reconstruction using Stratigraphic Analysis: A Case Study of Kampung Baru, West Sumatra Putri, Helen Dwi; Setiawan, Budhi; Rochmana, Yogie Zulkurnia
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5729

Abstract

The reconstruction of geological history includes the development of rocks and volcanic deposits on a depositional pattern consisting of various types of sedimentary materials accumulated over a long time, which involves depositional changes. Depositional changes require geological comprehension in analyzing and understanding the geological processes involved in their evolution. For this reason, stratigraphic analysis is a very relevant approach to discussing rock layers, including significant environmental changes during their geologic history. The purpose of this research is to find out the geological processes that have contributed to the formation of the earth in the past. The method in this research is a stratigraphic analysis carried out from field observation data carried out directly at the outcrop. Deposition began with the re-deposition of the Pre-Tertiary (Triassic)-aged Porphyry Quartz Dasite Formation. In the Late Oligocene Epoch, the Sawahtambang Formation was deposited, which formed in the braided river characterized by the presence of sedimentary structures in the form of lamination and cross lamination. In the Early Miocene to Middle Miocene, the transgression process occurred, where the change in deposition was caused by the supply of larger land sediments that caused the deposition of the Ombilin Formation to be deposited in the marine environment of the Transition-Nerritic Edge based on the bathymetry results. The research results are expected to enable geological information to gain in-depth knowledge and experience about the history of deposition and assist in geological modeling.
Productivity Evaluation of Digging, Loading, and Hauling Equipment in Limestone Mining, PT Pertama Mina Sutra Perkasa, Jember, Indonesia Santoso, Raffaello; Suparno, Fanteri Aji Dharma; Irawan, Januar Fery
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5561

Abstract

The failure of meeting the productivity target often occurs in mining operations and is caused by several technical obstacles. PT Pertama Mina Sutra Perkasa set a productivity target of 80 tons/hour for loading and digging equipment and 35 tons/hour for transportation equipment. An analysis of factors that affect productivity needs to be studied in order to find out the causes of not achieving the productivity targets set by the company. This research was conducted on the limestone quarry of PT Pertama Mina Sutra Perkasa (PMSP) located in Grenden Village, Puger District, Jember Regency using quantitative research methods. Research begins with the formulation of problems and then data collection and processing. Data that has been processed and analyzed can then be the basis for determining efforts to improve the productivity of loading and transporting excavations. There are three loadings location not reached the productivity target. Not achieving tool productivity targets due to low work efficiency, suboptimal tool distribution time, and a combination of a less than ideal number of tools. In this study, productivity improvement was carried out by reducing the actual obstacle time in order to increase effective working time and tool efficiency.
Use of Spatial Data in Mapping Landslide Prone Areas in Luhurjaya and Surrounding Areas, Lebak Regency, Banten Province Abiyyu, Muhammad Dimas Al; Harnani, Harnani
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5262

Abstract

Landslides are a natural process that occurs in a natural landscape on earth which can cause various environmental damage and can cause loss of life. An increase in the risk of landslides can be caused by uncontrolled land conversion due to the increasing population so that land development is necessary. The research was conducted in Luhurjaya and surrounding areas, Cipanas District, Lebak Regency, Banten with an area of 9 x 9 km. The spatial integration method was used to map landslide-prone zones using a scoring and weighting method, using five parameters, namely slope, rainfall, lineament density, rock type, and NDVI. Those five parameters are then overlaid to form a landslide susceptibility map. As a result of analyzing the research area based on these five parameters, it was found that this area has five slope classes, one rainfall class, five lineament density classes, three rock type classes, and four NDVI classes. After all the datas are scored and weighed, it was found that this research area can be classified to three zones, namely low landslide susceptibility zone, medium landslide susceptibility zone, and high landslide susceptibility zone. From the results of this analysis, disaster mitigation should be needed that can affect the community in the Lebak Regency area, Banten Province, namely in the form of providing provisions in the form of knowledge to the community regarding disaster management which is useful for minimizing the risk of the consequences of landslides
Comprehensive Facies Analysis and Depositional Environments of the Kikim Formation, Garba Mountain, South Palembang Subbasin, Indonesia Daryono, Sapto Kis; Idarwati, Idarwati
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5628

Abstract

This study provides an exhaustive facies analysis of the Kikim Formation within the Garba Mountain area of the South Palembang Subbasin, emphasizing the stratigraphic significance and depositional environments during the Paleogene period. Utilizing field data collected from the Bumi Agung and Batu Belang measurement lines, this research categorizes various lithofacies using Miall’s (1978) classification scheme, identifying eight distinct lithofacies and four facies associations indicative of a predominantly fluvial depositional setting. The results depict a detailed sedimentological framework, showing that the Kikim Formation was characterized by a braided river system with significant gravel and sandstone deposits. This analysis not only sheds light on the geological history and processes shaping the South Sumatra Basin but also enhances the understanding of its potential hydrocarbon reservoirs. By detailing the lithological diversity and facies distribution, this paper contributes to the broader geological knowledge required for effective exploration and management of the region's natural resources.
Design of Market Waste Biodigester as an Effort to Produce Renewable Energy for Climate Change Mitigation Strategy Ulhasanah, Nova; Sarwono, Ariyanti; Salsabila, Thalita Kaltsum; Bakara, Putri Pitra Uli; Saputra, Wisnu; Kembaren, Adewita Br
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5770

Abstract

The mismanagement of solid waste transportation to landfills contributes to various environmental issues, including increased greenhouse gas (GHG) emissions, propagation of disease vectors, aesthetic degradation, and interference with market activities. Addressing these challenges necessitates efficient waste processing at the source to mitigate waste accumulation at temporary dump sites and reduce GHG emissions. This study proposes the design of an integrated anaerobic digester at Pasar Kemiri Muka, specifically selected for its ability to convert organic waste into renewable energy. The anaerobic process is advantageous as it produces methane with a high calorific value, suitable for generating electricity. The generated electricity is then utilized to improve street lighting in the market area, which currently suffers from insufficient and poor-quality lighting. The proposed system is designed to power 14 LED street lights, requiring only 10m² for installation and incurring an operational cost of IDR 525,000. This approach not only provides a sustainable energy source but also enhances local infrastructure, contributing to a cleaner and more efficient market environment.
Design and Planning of Mine Drainage Systems at PT. Pertama Mina Sutra Perkasa, Puger District, Jember Regency, East Java, Indonesia Malik, Aldy Maulana; Sari, Avellyn Shinthya; Putri, Fairus Atika Redanto
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5352

Abstract

PT. Pertama Mina Sutra Perkasa, a limestone mining company, operates in Grenden Village, Puger District, Jember Regency, East Java Province. Utilizing an open mining system, the company faces challenges related to mine drainage. Based on rainfall analysis from 2013 to 2020. the planned rainfall rate is 25.938 mm/hour, with a rainfall intensity of 5.712 mm/hour, resulting in a runoff water discharge of 0.599 m³/second. The water discharge entering the well at the site is 2159.08 m³/hour. The designed drainage channel has a discharge capacity of 3.109 m³/second, a wet surface area of 0.5 m², a channel bottom slope of 0.03%, a hydraulic radius of 0.25 m, a Manning roughness coefficient of 0.011. a wet cross-section circumference of 2 m, and a flow depth of 0.5 m. The planned well dimensions are 60 m in length, 20 m in width, and 7 m in depth, with a volume of 8400 m³. The current sludge settling pond has three compartments with a total capacity of 393.75 m³. The proposed design for the sludge settling pond includes a length of 60.6 m, a width of 15 m, a depth of 7 m, and a volume of 5454 m³. The actual mud dredging frequency is once every 2 days, while the proposed plan extends this interval to 9 days using a Doosan 340DX type excavator. This comprehensive drainage system design aims to efficiently manage runoff and sedimentation, ensuring sustainable mining operations
Preliminary Research for Fault Identification as Disaster Mitigation in Sumbawa Besar Using Geophysics and Geology Methods Hayatuzzahra, Sayidatina; Jayatri, Adella Ulyandana; Desiasni, Rita
Journal of Earth and Marine Technology (JEMT) Vol 4, No 2 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v4i2.5704

Abstract

Faults are conditions under which rocks are displaced from their original positions. Its presence is closely related to its high tectonic activity. Fault movement can trigger earthquake disasters. Therefore, various studies on faults are important for carrying out disaster mitigation efforts. This study aims to identify the existence of faults in Sumbawa Besar as a disaster mitigation effort. The method used was a combination of geophysical methods and geological field observations. Geophysical methods include the average shear wave method (VS30) and the gravity method. The geological method consists of direct geological observations (geomorphology and structural geology) in the research area. The results of research based on geophysical methods, namely the gravity method, showed that in the research area, there were indications of thrust faults, which were then strengthened by VS30 analysis, which showed the existence of weak zones along the suspected fault lines. The results of field data collection and geological data analysis show that no surface fault characteristics were found in the research area.

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